are there ones that are not from Fireworks Emporium??
There is a 12 foot crackle cracker, not sure if Firework Emporium have that one in their range (I havn't checked)- They also have Prodigy salvo marked as "new" , although they stocked a version of that perviously.
Other than that, yeah, all the "new" stuff does seem to have been stocked by Firework Emporium last season.